"Harry K" wrote in message
om...

Well I have attempted to explain it as simply as I can. I repeat that
the one drawing is incorrect. do your own experiment, ask a physics
teacher or as Tom says, look it up.

Harry K

I have, and have come up with answers that oppose yours!
I helped a friend build a two post automotive lift using heavy chains and
hydraulic cylinders. It will lift 10,000+ lbs. We used princibles that we
have been discussing .
Greg